Printing-press



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S. N. SVENDSEN. PRINTING PRESS.

tented Nov. 2,1897.

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(No Model.) 4 SheetsSheet 2. S. N. SVENDSEN. PRINTING PRESS.

No. 593,169. PatentedNov. 2,1897,

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PRINTING PRESS. No. 593,169. Patented Nov 2,1897.

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UNITED STATES ATENT @rrrcn.

SVEND NIELSEN SVENDSEN, OF BROOKLYN, NEXV YORK.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 593,169, dated November 2, 1897. Application filed February 20,1896. Serial No. 580,014. (No model.)

To all whom it may concern.-

Be itknown that I, Svnm) NIELSEN Svnnn- SEN, a subject of the King of Denmark, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful'lmprovements in Printing- Presses, of which the following is a specification.

The essential feature of my invention is a pair of beds located a suitable distance apart and adapted to be simultaneously raised and supported for a time while the impression is being made and then lowered preparatory for repetition of the same, and a pair of rocking platens coacting with said beds when in the elevated position to make the impressions, with means for inking the type, feeding the paper in long webs, reversing it between the pair of beds and platens to be-printed on the opposite sides, respectively, and for discharging the printed paper, all as hereinafter described, reference being made to the accompanying drawings, in which- Figure 1 is a side elevation of my improved machine, partly in dotted lines and partly in full lines, with the front side of the frame omitted. .Fig. 2 is a plan view with a part broken out and some parts omitted. Figs. 3 and 4 taken together represent substantially the more essential elements of the machine in substantially the same View as Fig. 1, with some parts in section, but on a larger scale for greater clearness, and the gear-trains for communicating the motions are omitted.

Fig. 5 is a'transverse section partly through one of the platens on line 2 2, 1. Fig. 6 is a detail of the type-inking rolls in side view and enlarged for greater clearness.

The beds for carrying the type-forms are represented at a, and b, respectively. They are arranged to rise and fall in suitable guideways, as c, and in this example cams d are represented as the means of raising them up and holding them while the impressions are made. They descend by gravitation. Any

other approved means of operating them may be employed. In this example these beds are arranged at a distance apart in a direct line along which the paper c is caused to pass, but they may be otherwise arranged, and over each bed is a curved rocking platen f, between which and the bed the paper strip passes to be pressed on the type when the bed is raised up.

The roll of paper is mounted by the pivots g in the brackets h at one end of the machine. It is led up under the guide-roll i, over the feed-roll j, under the tension-roll it, around the guide-roll Z on the stocks m of the first platen f, thence around guide-roll a at one edge of the platen, and under the curved face of the platen, over the guide-roll 0 at the other edge of the platen, and around roll 13 on the platen-stocks, thence under rolls, over guide-roll Z, to and around reversing-roll i, and therefrom over guide-rolls Z and *n, under the second platen f, and over guide-rolls o and 19, after which, being now printed on .both sides, it passes under tension-roll it and over feed-roll o and (when split) around guiderolls w w to the turning-bars so, from which it passes out from the front side of the machine in the direction indicated by the arrow y, Fig. 2, onto any suitable roll or spool or to a folder.

The machine is designed to be wide enough to print a doublewidth web, which is to be split alongthe middle by a rotary or other cutter fixed at a into two separate strips, for which two turning-bars a: are provided, as indicated in Fig. 2.

The platens f rest at the ends on surfaces a of the frame, whereon they rock and between which the beds rise up in contact with the platen to make the impressions. For the means of operating the platens the upper ends of the stocks m are connected by'rods b with the crank-shaft c, turning in the direction indicated by the arrow 3, whereby they are made to rock toward and from each other alternately, the simultaneous movements being in opposite direct-ions corresponding to the reverse movements of the paper necessary to printing it on both sides.

The platens are kept in position on the rails ct by rocking posts d at the front and rear sides, respectively, pivoted to the frame at e',which is the axis of the rocking motion, and confined in boX-guidesf, secured to the sides of the rockers, allowing the necessary rise and fall of the central portions of the rockers relatively to the posts. The rocking posts are chambered longitudinally inside, and a coiled spring g is placed in the chamber of each post and compressed between the wall of the upper end of the chamber and a foot-piece h of the rocker projecting into the chamber under the lower end of the spring, said springs being to relieve shocks whenthe changes of motion of the platens occur and to hold the platens firmly to the beds for making the impressions.

As a further means of confining the platens accurately in position vertical guides, as i", may be attached to the frame at the sides of the platen with guide-studs or rolls j on the platen to play along the guides as the platens rock.

The platens may have toothed margins of the rockers geared with toothed racks on the frame to facilitate keeping them in position.

As represented in Fig. 1 the platenshave nearly reached the extremes of their movements indicated in dotted lines, while the paper web is being shifted along after an impression and preparatory for another, being then drawn under the platen by the swinging rolls 1) and p in addition to the action of the roll and the cams cl as about to begin to raise the beds a, b. WVhen on the reverse movements of the platens they have reached the same positions in which they are shown, the beds will be raised to contact with the platens and the impressions will be made during the completion of said reverse movements, the paper web being at this time at rest relatively to and in contact with the faces of the platens, although the feedingrolls j, s, Z and thave constant movements, the paper then supplied by them being taken up by the rolls Z and Z swinging on the platenstocks. It will be seen that the paper fed along at this time by the rollj is taken up by the roll Z moving away from roll j, and the paper given off at the same time by roll 19 moving in the direction of the feed movement is taken up by the roll Z on the other platen. The paper given off by roll pin the direction of the feed movement is taken up by the feed-roll o and the tightener u. The tightener is controlled by cams 7c and springs said roll being mounted in the arms Z which are pivoted to supports at m and rest at their free ends on the cams. When the platens return in the directions indicated by the arrows 4, the rolls 1) p and feed-roll v draw the paper forward along the platens preparatory to the next impression. Any slack there may be between the feed-roll j and the roll Zin case the movements are not accurately gaged will be taken up by the tightener is, controlled by springs o and cams 19 To ink the type, an ink-supplying roll (1 is located each side of each bed in the lengthwise range of the machine, and a pair of traveling type-inking rolls 3 is provided with each bed in suitable relation to traverse the same once over while resting in the lowermost po sition, said rolls having contact with and being rotated by an ink-supplying roll (1 while the impressions are being made to receive a charge of ink. With each pair of the traveling typeinking rolls 5 is a distributing-roll t which is in contact with both of the rolls when moving over the type-bed and is geared with toothed racks n for being rotated to distribute the ink and insure the rotation of the inking-rolls. To relieve the inking-rolls from contact with the distributing-roll 25 while in contact with the ink-supplying rolls g a lift in g inclined way '0 is provided at each end of their range of travel, on which the distributin'g-roll is lifted from contact with the others by its projecting pivots being forced upward just before reaching the limit of the traverse movements.

The toothed racks lo with which the distributing-rolls t are geared, are inclined upwardly at the extremities in due relation to these inclined ways for allowing the distribnting-rolls to thus rise out of contact with the inking-rolls. These inkingand distributing rolls are pivoted in blocks 10 attached to the extremities of toothed racks x and having a carryingroll g traversing rails 5 of the frame. -Roll is pivoted in open notches, permitting it to rise and fall. 0 ver the toothed racks 00 are rolls 1' to keep them in gear with wheels (L The toothed racks 00 are geared by wheels (7 and b with the toothed sector 0 pivoted at e and connected by rod f with the lever g actuated by the cam 72/ which is timed to cause the traverse of the inking-rolls over the type-beds once for each impression.

To charge the ink-supplying rolls 1 with ink, an ink-trough is provided for each roll, in which is an intermit'tingly-rotating roll '0 whereon ink in a thick pasty condition is taken up in amount regulated by the adjustable scraper Z and from which it is given periodically to the transfer-roll a which gives it to the-ink-supplying roll The transferrolls of are mounted in vibrating levers 0 connected to the rods 19 one on each side of the machine, which rods are connected to arms g of a rock-shaft 3 which is connected by rod i with the lever 9 which is actuated by the cam 71?, which when shifting the inking-rolls s in one direction brings transferroll 01 in contact with the roll k in the inktrough, and when shifting the inking-rolls in the reverse direction brings said transfer-roll in contact with the ink-supplying roll q? To actuate the rolls k in the ink-troughs intermittingly, they have a ratchet-wheel u pawl v and a gravitating pawl-lever 1.0 the latter having a hooked rod 00 which at each revolution of the wheel 1 is caught by the stud-pine projecting from the side of said wheel g and pulled forward to shift the roll k a stage. When the stud-pin 2 escapes from the hook', the weighted pawl-lever returns the pawl to the normal position, where it rests on an adj listing-screw a which regulates the extent of movement of the roll, and thereby the quantity of ink taken up by it. Thewheel 3 is geared by wheel I) on the ink-supplying roll g for its motion.

Under each inksupplying roll q? is a pair of ink-distributing rolls (i having contact with. said roll g to be rotated thereby and having forward and backward movement lengthwise, which is imparted by a camgroove e in the hub of roll g the vibrating lever f and the vibrating'lever g ,.but this being a common device in inking apparatus is not claimed and need not be more particularly described.

For actuating the various elements of the machine before described various contrivances of gearing may be employed at the will of the constructor, and I do not limit myself to any particular contrivance. What I have indicated for showing an operative means consists of the main drivingshaft h located at the middle of the machine, to which the power may be applied in the first place, and gearing with a train of toothed wheels 1?, giving motion to the crank-shaft c, from which the rocking platens j and the feed-rolls are worked, and from the driving-shaft lateral trains 3' lead off in each direction to the inksnpplying rolls and the bed-liftin g cams, and a branch train k leads off from the left-hand train j to the feed-roll j.

The guide-rolls s, 2*, and t may have powerbelts applied to them to utilize them for feeding also. Leather belts or tapes e are to be applied on tape-rolls b and c*, with tighteners d" to grip the paper web on feed-roll o, also tapes 6 on rolls f and g, with tightener h to grip the paper on feed-rollj.

Instead of arranging the beds and platens in a direct line they may be located in a rightangular course with a turning-bar at the angle for reversing the paper web, or they may be located one above another, with suitable means for guiding and feeding the paper in such arrangement.

, I claim as my invention 1. The combination of a type-bed and a curved rocking platen over the type-bed, said type-bed and platen adapted to be separated for allowing the paper to pass between them and for inking the type, and means for feeding a continuously-movin g paper web between the type-bed and platen and causing it to dwell relatively to the platen while making the impression substantially as described.

2. The combination in a printing-press, of a rising-and-falling type-bed, a curved rocking platen over the type-bed, and means for feeding a continuously'moving paper web between the type-bed and platen and causing it to rest or dwell relatively to the platen while making the impression substantially as described.

' 3. The combination in a printing-press, of two rising-and-falling type-beds, and a curved rocking platen over each bed located at a distance apart along a paper-web-feeding course and moving toward and from each other alternately, means for feeding a paper web be tween the type-beds and platens and causing it to rest or dwell relatively to the platens while making the impressions and means for reversing the paper web intermediately of the two beds and platens said platens being actuated reversely to each other corresponding to the reverse movements of the paper web substantially as described.

4. The combination in a printing-press, of two rising-and-falling type-beds and a curved rocking platen over each bed located at a distance apart along a paper web-feeding course and moving toward and from each other alternately, means for feeding a paper web between the type-beds and platens and causing it to dwell or rest relatively to the platens while making the impressions, and means for reversing the paper web intermediately of the two beds and platens, part of said means for so feeding the paper consisting of the guide-rolls for the paper located on the reversely-operating platens whereby the paper let off from one platen while making the impression, is taken up by the other platen substantially as described.

5. The combination in a printing-press, of two rising-and-falling type-beds,and a curved rocking platen over each bed, located at a distance apart along a paper-web-feeding course, means for feeding the paper web to the first platen thence to a reversing-roll and thence to the second'platen, means to actuate said platens simultaneously in reverse directions and meansto deliver the paper 4 from an intermediate position relatively to the platens, substantially as described.

6. The combination in a printing-press, of two rising-and-fallin g type-beds, and a curved rocking platen over each bed located at a distance apart along a paper-web-feeding course and moving toward and from each other alternately, means for feeding the paper web to the stock of the first platen at a point above its axis of motion, and near its middle plane, thence in a reverse direction to one edge of the platen, under said platen to the other edge and to an opposite point on the stock corresponding to the first position of the web thereon, thence to and aroundthe reversing-roll and around the second platen in like manner and to the delivering-rolls movement on the feeding and delivery rolls,

is caused to dwell on the type-beds for receiving the impressions, substantially as de scribed.

7. The combination in a printing-press, of two risin g-an d-fallin g type-beds and a curved rocking platen over each bed located at a distance apart along a paper-web -feeding course and operating reversely to each other, means for feeding the paper web to the first platen over a roll on the vibrating stock of said platen, thence to a reversing-roll, and thence to the second platen over a roll on its vibrating stock, a tensionroll intermediate of the feeding mechanism and the first platen, means for feeding the paper strip from the second platen and a tension-roll intermediate of said second platen and said means for feeding the paper Web therefrom substantially as described.

8. The combination with the rocking platens, of the rocking posts pivoted to the frame 5 in the axis of the rocking motion, and guideboxes of the platens said posts arranged in the guide-boxes substantially as described.

9. The combination with the rocking platens, of the rocking posts pivoted to the frame IO in the axis of the rocking motion and guideboxes of the platens, and the springs to press the platens down said posts arranged in the guide-boxes substantially as described.

Signed at New York city, in the county and State of New York, this 11th day of January, I 5 A. D. 1896.

SVEND NIELSEN SVENDSEN.

W'itnesses:

W. J. lVIORGAN, A. P. THAYER. 

